Quasars from the 7C Survey - I:sample selection and radio maps
We describe the selection of candidate radio-loud quasars obtained by cross-matching radio source positions from the low-frequency (151 MHz) 7C survey with optical positions from five pairs of EO POSS-I plates scanned with the Cambridge Automatic Plate-measuring Machine (APM). The sky region studied...
Main Authors: | Riley, J, Rawlings, S, McMahon, R, Blundell, K, Miller, P, Lacy, M, Waldram, E |
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Format: | Journal article |
Published: |
Oxford University Press
1999
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